From the looks of the terrain, I would say this was not far from the California, Arizona, Nevada boarder. This looks like it was taken on Route 375, notoriously known as the Extraterrestrial Highway, not far from Area 51. I use to live in Needles and Bullhead City for a few years.

The driver saw a beam of light coming out from in-between the crevice in a rock along the road. I would say this is a light being from the looks of it, and it is leaving an underground base that is about 4-5km below the ground in this very location. These light beings are often mistaken as angels.Scott C. Waring

Eyewitness states: Driving along a road in California, I stopped to take a picture of a small light hovering above a rock. It grew and then in an instant it was gone.